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Finding the Fourth Proportional to 513.04, 708.24 and 303.14

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Solution

The fourth proportional to 513.04, 708.24 and 303.14 is: 418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.04 : 708.24 = 303.14 : x
  2. Step 2: Convert to fraction form
    513.04/708.24 = 303.14/x
  3. Step 3: Cross multiply
    513.04x = 708.24 × 303.14
  4. Step 4: Simplify right side
    513.04x = 214,695.87
  5. Step 5: Solve for x
    x = 214,695.87/513.04
  6. Step 6: Final answer
    x = 418.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.